PMC:7102659 / 8766-8910 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T61","span":{"begin":0,"end":144},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Many evidences and studies, e.g., (Tuite and Fisman, 2020, Zhao et al., 2020a, Zhao et al., 2020b), suggest the reporting ratio is time-varying."}